A single speck of dust is half way in size between a subatomic particle and the Earth.
15
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Hot water can freeze faster than cold water.
181
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Nearly 50% of the world's scientists are assigned to military projects.
71
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16